package cn.itcast.service;

import cn.itcast.pojo.Member;

import java.util.List;

/*
 *Author:TH
 *Dete:2019/10/2819:05
 */
public interface MemberService {

    Member findByTelephone(String telephone);

    void add(Member member);

    List<Integer> findMemberCountByMonths(List<String> months);
}
